Charles h



(NO I 0. BIDWELL.

ELEVATOR. No. 285,788. 8 Patented 088. 2,1888.

i .1 a T WIT/1 53555, V E [1V ZZZ T013 UNITED STATES P TENT OFFICE.

CHARLES H. BIDWELL, OF ALBION, NE? YORK.

ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 285,788, dated October 2, 1883.

Application filed July 30, 1883. (N model.)

To all whom it may concern: 7

Be it known that 1, CHARLES H. BIDWELL, a citizen of the United States, residing in A1- bion, in the county of Orleans and State of 5 New'York, have invented a new and useful Improvement in Elevators for Thrashing-Machines, of which the following is a specification.

It is awell-known fact thatbeans pulled by 1 hand or machine have quite a little earth left clinging to their roots, that remains until they are fed into the machine'for thrashing, whenit is separated from the roots and carried with the beans and unthrashed pods to the sieves of the fanning-mill. To separate the beans from the pods requires a very strong blast of 'air from the fans of the mill, and this blast, together with the shake of the mill,-carries the unthra shed pods and dirt over the ends of the sieves, where they fall into a spout and are carried to the elevator, to be returned to the cylinder and rethrashed. As the pods and dirt are thrown upon the, belt of the elevator a portion of the fine dirt works under the edges of the belt and accumulates between it and the dividing-board and the rollers upon which the belt rests, thus clogging it and pre venting it from moving to elevate as it should.

The object of my invention is to provide i1n-. o provement-s in the ordinary elevators used in thrashing machines, and especially in machines for thrashing and cleaning beans, that shall prevent the clogging of the belt of the elevator. I

My invention consists in cutting away a portion of thedividing-board upon which the elevatorbelt rests at a point near its lower end, and placing beneath the opening a false bot tom, made of sheet-iron or other suitable material, and of suitable size and shape, to collect the fine dirt that works under the belt at its sides and carry it off through an opening in the outer case of the elevator, thus preventing an'y accumulation of dirt under the belt.

My invention is illustrated in the accompanying drawings, in which Figure 1 is a vertical longitudinal section taken on line 1 1 in Fig. 2. Fig. 2 is a top view of the elevator as it appears after the removal of its top on 50,1ine 2 2 in Fig. 1, the belt being broken away to show the opening in the dividing-board. Fig. 3 is a vertical cross-section on line 3 3, Fig. 1.

Similar letters refer to similar parts throughout the several views.

A is the outside casing of the elevator.

B is the dividing-board, placed on a line with the tops of the rollers that carry the elevator-belt, and near its lower end is an opening, 0, through which dirt that accumulates 011 the Board B passes. A false bottom, D, made of iron or other suitable material, is placed under the opening 0, and has formed 011 one of its sides a spout, a. The bottom D collects thedirt that passes through the opening ,0, and it is carried by the spout a. through an opening, E, in the side of the elevator, and falls to the ground.

F is an elevating-belt passing around the rollers G G, and on the surface of which are secured the buckets b. The shaft of the roller G extends through the casing of the elevator,

and on its outer end is secured a pulley, H,

over which a belt passes, revolving the pulley H and the roller G, and carrying the elevator: belt F.

I is a spout through which the material to be elevated is carried from the fanning-mill to the elevator.

In operation the unthrashed pods and dirt are carried from the sieves of the mill by the spout I, and are thrown upon the belt F. The fine dirt that passes between the edges of the belt and the sides of the elevator, and has heretofore operated to clog the belt and prevent it from operating, is by this invention re moved by falling through the opening G and passing out of the spout E.

\Vhat I claim as my invention, and desire to secure by Letters Patent, is-

1. In an elevator for thrashing-machines, the combination, with the dividing-board B and the belt F, of the opening 0, substantially as shown and described, and for the purpose set forth. m e

2. In an elevator for thrashing-machines, the combination, with the dividing-board B, belt F, and opening (7, of the false bottom D and the opening E.

CHAS. H. BIDWELL.

Vitnesses: 1 JOHN A. STRAIGHT, HENRY STRAIGHT. 

